Article
A novel OPHN1 variant associated with cyclic strabismus but in the absence of OPHN1 syndrome.
Scientific reports - 24 Apr 2026
Nishina Sachiko, Kofuji Satoshi, Matsubara Keiko, Anzai Hazuki, Hirakata Kyoko, Hanazono Yuya, Okamoto-Uchida Yoshimi, Hirayama Jun, Ito Nobutoshi, Fukami Maki, Nishina Hiroshi
Abstract excerpt
Cyclic strabismus is a rare form of strabismus whereby individuals experience the disease in a pattern of alternating days with or without strabismus in a circadian rhythm-dependent manner. However, the molecular mechanism that underlies this rhythm is unknown. OPHN1 encodes a Rho GAP protein, and mutations specifically in the BAR or GAP domains of OPHN1 cause OPHN1 syndrome characterized by intellectual...
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